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. Author manuscript; available in PMC: 2017 Aug 30.
Published in final edited form as: Acta Trop. 2016 Apr 2;159:219–226. doi: 10.1016/j.actatropica.2016.04.001

Table 4.

Prevalence and intensity of STH infections, by deworming cycle, between July 2012 and July 2014, in Loreto, Peru.

Jul-12 Nov-12 Mar-13 Jul-13 Nov-13 Mar-14 Jul-14 aOR* OR 95% CI
Ascaris (%)
(moderate and heavy)		 65.2
(40.0)		 43.1
(6.5)		 39.4
(8.0)		 37.0
(3.0)		 39.6
(6.8)		 41.3
(3.5)		 37.5
(2.9)		 0.27
0.04		 (0.22-0.34)
(0.03-0.08)
Trichuris (%)
(moderate and heavy)		 64.8
(25.2)		 40.4
(10.0)		 38.4
(9.4)		 36.0
(8.2)		 34.5
(10.0)		 34.0
(7.9)		 33.8
(6.7)		 0.23
0.22		 (0.19-0.30)
(0.14-0.33)
Hookworm (%)
(moderate and heavy)		 4.2
(0)		 3.8
(0.2)		 3.5
(0.3)		 5.9
(1.7)		 4.9
(1.2)		 2.9
(0)		 3.09
(0)		 0.73
(--)		 (0.43-1.25)
(--)
Any STH (%)
(moderate and heavy)		 82.4
(49.0)		 61.7
(13.9)		 58.4
(16.2)		 58.5
(12.0)		 56.0
(16.3)		 57.5
(10.7)		 55.8
(9.5)		 0.27
0.11		 (0.21-0.34)
(0.08-1.56)
Stunting (%) 23.4 24.0 23.0 22.2 21.9 20.4 24.0 0.89 (0.86-1.86)
Anemia (%) 21.0 22.6 21.7 24.2 23.3 32.6 33.1 1.96 (1.56-2.46)

aOR= adjusted odds ratio comparing prevalences between July 2012 and July 2014 (obtained from a GEE model, conditional on age, sex, province (when applicable) and adjusting for clustering by schools, assuming an exchangeable correlation structure)